Windmill.



draps awr THOMAS SHEPPARD BARWIS, OF VANCOUVER, CANADA, ASSIGNOR OF ONF-l-TALF TO ROBERT BURNS SKINNER, OF SAME PLACE.

WlNDlVllLl...

SPECIFICATION forming part of Letters Patent No. 667,965, dated February12, 1901.

Application filed June 23, 1900.

To all whom, t pta/y concern.'

Be it known that l, THOMAS SHEPPARD BAP.- Ws, a subject of the Queen ofGreat Britain, and a resident of Vancouver, in the Province of BritishColumbia and Dominion of Canada, have invented a new and usefulImprovement in Power-VVheels, of which the following is a full, clear,and exact description.

The purpose of this invention is to provide ro a simple, economic, andeffective construction of wheel adapted to be operated by either wind orwater and in which sails or wings are employed, so mounted that theyautomatically feather and otherwise adjust themselves i5 to the elementsand offer the least possible resistance when in the wind or when in linewith ebbing or discharged water.

The invention consists in the novel construction and combination of theseveral zo paris, as will be hereinafter fully set forth,

and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indi- 125cate corresponding parts in both the iigures.

Figure 1 is a perspective View of the upper' portion of a wind-wheelconstructed in accordance with myinvention. Fig. 2 is a vertical sectionthrough the wind-wheel and the 3o tower adapted to support the same.

A represents a tower of any approved construction, and B a shaft whichis adapted to turn in the tower. This shaft is provided with a collar10, just below the turn-table or 3,5 upper portion 11 of the tower, andthat portion 12 of the shaft B which extends above the tower is reducedin diameter, while at the upper portion of the shaft B a ring or clamp13 or the equivalent thereof is secured,

io provided with eyes lli or like devices, to which stretchers, guys, orbraces may be attached.

A frame C is secured to the upper or reduced portion 12 of the shaft B,and the frame is preferably a hexagon in shape, although it 45 may begiven other contour; but in practice the hexagonal forni has been foundto be preferable. The frame C consists of a series of horizontal arms15, which radiate from a hub 16, and a slot 17 is made at the outer endof 5o each arm 15. The marginal portion of the frame consists ofcross-bars 1S, which consti- Serial No. 21,317. (No model.)

tute the side members, and these cross-bars 18 extend from one arm 15 tothe other and rest upon the said arms adjacent to the sido walls of theslots 17 therein, and these portions of the side bars 18 which rest uponthe arms are vertically enlarged.

Vertical plates 19 are adj ustably pivoted in the slots 17 of the armslabout horizontal axes 19, disposed approximately at a right angle tothe respective arms, and wings or sails 20 are pivot-ally attached tothe upper and lower portions of the said plates to turn about verticalaxes 20, the pivotal attachment of the wings or sails being at or abouta central point between their side edges; but the wings should be ofsuch form or the pivot 2Oa so located that the areas of the Wingp0rtions lying on opposite sides of the vertical plane passing throughthe said pivot will be different, or rather that the action of the windon one of said portions will be stronger than on the other portion. Theplates 19 are guided not only by the walls of the slots 17, but by theenlarged ends of the bars 1S. The wings or sails extend about equallyabove and below the frame when said wings or sails are in a verticalposition; but they may extend a greater or less distance above or belowthe frame C. Usually and preferably the sides of the Wings or sails aretapered or inclined in opposite directions, so that the bottom portionsof the wings or sails are somewhat wider than the upper portions. Itwill be observed that under this construction the wings o1I sails mayassu me avertical posit-ion, an inclined position, or a horizontalposition, in which latter position they rest upon the upper portion ofthe frame C. The inclined or horizontal position is only given to thewings or sails 2O when the wind is very high or the capacity of themachine is to be limited. Each sail or wing is preferablyloweredindependently--as, for exam ple,a rope,chain, or cord is attached to theupper rear portion of each sail or wing, and each rope 35 is passed overpulleys 3G on the frame C and down the shaft B to an attachment to asuitable cleat 37, as is shown in Fig. 2. Any form of latch may beemployed as necessary to hold the Wings or sails down. The frame isbraced or strengthened by means of guy- IOO ropes 21, wires, or braces,and the said guyropes, wires, or braces are attached to the arms 15 andto the rings 14 at the upper portion of the shaft B.

The sails or Wings 2O facing the wind will receive the full force of theWind and will cause the frame to revolve, and as the wings or sails arebrought into the wind their edges are presented to the wind, and suchsails offer the least possible resistance to the rotation of the frame.As the frame rotates it revolves the shaft B, from which power may betaken in any suitable or approved manner.

This construction of wind or water wheel is exceedingly simple, durable,economic, and effective, and the wheel may be adapted either as atide-Water wheel, a current-wheel, or it may be used in a fiume, asrequired.

In operation, the sails remain perpendicular, taking advantage of thewind at every angle, and one sail feathers in the Wind in turn as eachsail comes into the wind; but the sails do not dip horizontally unlessit is desired to have them do so in order to protect the mill from veryheavy winds or sudden squalls. In such a case the sails may be pivotedhigher, so as to give a greater area above than below the frame C, thelower part of the sails being heavier, the sails automatically resumingtheir upright positions when the great pressure ceases.

It will be understood that the water-wheel eef/,96%

will work when completely submerged in the water as effectively as thewindmill does in the wind and that the water-Wheel operates withequally-good effect when only partially submerged. l

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A power-wheel, comprising a rotary frame havingradial arms slotted at their outer ends, and side bars provided withspaced ends in alinement with the walls of the slots of said arms,platesA or supports extending into the said slots and between the endsof the side bars, and pivoted to the arms about aXes disposedsubstantially in the plane of rotation of the frame and at right anglesto the respective arms, wings or sails pivoted to the said supportsabout axes disposed in planes at right angles to the first-mentionedaxes, and connections for swinging the wings or sails and their supportsabout the axes of the latter, to vary the angle which the sails formwith the frames plane of rotation.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

THOMAS SHEPPARD BARWIS.

Witnesses:

SAM. A. MOORE, MAX MAceowAN.

